+1

One of my favorite cities in the world. It's so wonderful that I go back every few years. Interesting food, architecture, culture and activities on offer. The outstanding value for money is an added bonus.

-----

On the transport issue, I agree with the recommendation to buy a 72hr or one-week public transport pass; I always do so as I've found that Bp is actually quite a spread-out city if you want to experience it in more depth as opposed to just doing the "standard" tourist things. And since 2012, the pass has come with an added bonus: on weekdays, you can use the pass to ride the public ferries which operate along the Danube. Cheap sightseeing cruise ^

However, if I need a taxi, I often use the Fő Taxi iPhone app and can highly recommend it. It's easy and convenient, and Fő is one of the most reputable taxi companies in Bp. I've never had any communication issues with their drivers. Have also used 6x6 Taxi with no issues. (I'm pretty picky about which taxi companies I use in Bp, given all the previous issues with foreigners getting ripped off - no harm exercising a bit of extra caution - even if rogue operators are in the minority, especially with all the new taxi regulations the city has implemented).

Just my 2c worth, in case anyone is still reading this thread looking for ideas